Device for spinning artificial silk threads



May 30, 1939. K. BERNDT DEVICE FOR SPINNING ARTIFICIAL SILK THREADS Filed May 20, 1957 5 Shets-Sheet 1 May 30, 1939. K BERNDT 2,159,961

DEVICE FOR SPINNING ARTIFICIAL SILK THREADS Filed May 20, 193'? 5 Sheets-Sheet 2 May 30, 1939. ERNDT 2,159,961

DEVICE FOR SPINNING ARTIFICIAL SILK THREADS Filed May 20, 1937 s Sheets-Sheet s um'rao STATES PATENT OFFICE DEVICE FOR SPINNING; ARTIFICIAL. SILK THREADS KarlBerndt, Ti'lsit-on-the-Memel, Germany pplication May 20, 1937., Serial No... M35 3 In Germany .3. 183.6

'19 Claims. (Cl. 188) My, invention relates to devices for spinning 4 ws the ame QQYiC a F g- 3 wi artificial threads from viscous material in t e re ol ing c nta ner pen the threads issuing from. a spinner head pass E s- 5 s ows ade ail oi s- 3 n into a liquid column which ro ates in theneishhis. 6 sh ws ano her embod me f my inborhood of the head in the same direction o vehtio w th t e i uid on ain r cl s d... all 5 rotation and at the same speed, and whi h p acta n rs 1 6m shown in lon i udinal Q tically does not rotate at. the point where the Fi 1 hows th sam device a F a, 6, howds l v h l quid D vices of he abo cover open oonta erindicated character are described i the copehd- Fi 8 i a top vie o the winner head of t e 10 s patent applications serial No... 3.1%, filed embod ment h wn F s- 6 and 7- 0 March 6, and serial No. 143,672,, filed Re e rin o i 1 and 2' 1 denot s t 20, 1937. The devices are provided with a 0.0;.1- thread, .3 the spinner head which is provided in a r fo t rot t n portion of the liquid cola kno n man er with a p u alit o h le he 1mm and with a second, container for the nonsingle hie dsissiiine from se hol e w s 1 revolving portion of the column. Both oh a heel to term t e thread I by e ro ati n of he 1,5

ers aie connected with each other by a duct head 3 while the pa s t r u h a c agu a through which the thread passes. so h ead as e e a u le 3 i An object of y present invention is toimthe iiirect oh ?lh lowe ect on 1 of a v vprove devices of the abovenndicated charaeterin co ta..- or is m unted on he e o the Spineo A m e specific object of my in ti cons st .dleifio 'a electric mot r h i le 51 2 n facilitatin the starting of the spi n ng'p olow-a id mes o sup l the s u ma al to es A u the ob ect of m invention c ns sts h sol. .er h ai 1 Th viso i pl d to the in facilitating the cleaning'of the spinning de- -.sp i;ni :lle t hro gh apipe I. 5. The upper sectionll of vice. Another objec -of my i ention consists in r vol in con ine is ro ata v u d a reducing the space required for devices of the d ategat to, L6 on a sleeve 9] of a stationary, v25 above-indicated character which ar pr i ed 1 gho -rotat h containe See-Win as a l l l- With a p u ty of sp dl s- A sti.11.fu the. b ch tube 1 to eii tl g th thr a 1 is a an ed i'ect of my invention is to improve the operatio n h sl eve 9 and is held position by struts f the spinnin device. other objec s o m -92, A storag tank H or coa la ng l id 0 invention will be apparent from the following oonnegted to the container 9 l'lii ougla a hose I 2. rip n- .A time o hose 1.3 ro ided w t a coo An essential feature of my invention consists serves as a syphon tor filling the lower section in the fact'that the rec ptaclcior the revolvin I the r volv n on a ne wit c a l ti portion of the coagulating solution is divided .sollltion when starting the spinning.

transversely to the direction in which the thread The .device as shown in Fig. 2 is ready for be- 35 is drawn. One section of this receptacle contains ing operated. 'gtfihe rotary receptacle 1, 8 is closed. the spinner head, the other section, as well as .Qontainer 8 and tank ill lie in the same ithe container for the non-revo1ving portion of -lz on tal plane sothat suchan amount of coagulatthe liquid column, may be removed from thesecsolution may supplied from tank H to tion containing the spinner thread in the .direccontainer 9 and then to the rotary receptacle 1, 40

tion in which the thread is .drawn. -8 as has been used durir 1g .the spinning. The

Other essential features .of my invention will receptacle 1,18 is so sealed that the liquid used be apparent from. the following.descriptiongtaken ;isue,s from between the parts 8 and 9|. The in connection with the drawings, in which device may .be surrounded by a jacket which colg; Fig. 1 shows a device .for spinning artificial lects the .issflng a Prevents dinal cross-section. liquidcQlhmn which rotates as rapid as the head;

silk threads according to the invention. The .de- ,a splashing thereof. This jacket is not shown vice is provided with a stationarycontainer and inFigs. l and '2 for the sake of simplicity.

a rotary container divided in the transverse di- ,During the spinning the thread issuing from rection; these containers are shown in longituthe spinner head 2 passes into aportion of the Fig.2 shows the same device in operative posifrom whence it passesito the thread guide I] into tion. -coritainer 9 that istosay, into a portion-of the Fig. 13 shows a longitudinal sectional wiew of liquid column which does not rotate. The'struts another embodiment .of .my invention with the 1 92 limpedethe transfer of the rotation i'rom the revolving container closedand I v liquid.in containerfl'l, .8 to .theliquid in container;

9. The thread i passes over the pulley 3 and may be wound onto any suitable reeling device. During the spinning the rotary receptacle 1, 8 is completely filled up with liquid even if the device is driven at high speeds, for instance, of 3000 to 10,000 R. P. M. and over.

If the rotary receptacle is opened by raising container 9 together with section 3 secured thereto, the liquid held by container 9 flows back into the supply tank H through the hose !2. The lower section 7 of the rotary receptacle is so shaped in the interior that the contents thereof may be ejected therefrom when uncovered by the rotation of the lower section. The lower section 1 is, therefore, preferably given the shape of a bowl.

Since the rotary receptacle is made of two sections 1' and 8 which may be taken apart in the direction in which the thread i is drawn the spinner head is easily accessible for cleaning the same and for starting the spinning.

This is accomplished with the upper section 8 removed by switching in the motor 5. By rotating the lower section 7 the liquid is ejected therefrom. To start the spinning-a wire is passed through container 9 and the upper section 8 of the rotary receptacle. After opening the cock l t with the motor 5 at rest the thread projecting from the head 2 is drawn and stuck to the lower end of the wire. The thread is then passed through the upper section 8 of the rotary receptacle and through container 0 over the pulley 3; the tube I3 is then removed and the rotary receptacle is closed. When lowering the upper section 8 together with container 9 the coagulating solution flows by gravity into the closed rotary receptacle. The motor 5 may now be switched in and the spinning may be continued.

The embodiment shown in Figs. 1 and 2 may be modified to the effect that instead of raising the upper section 8 of the rotary receptacle when opening the same also the lower section I together with the motor 5 may be lowered. In this case a shutting-0.1T device may be arranged in the conduit E2 in order to prevent the coagulating solution from flowing from the supply tank II into container 8 and through the upper section or" the rotary receptacle 8.

According to the invention the upper section of the rotary receptacle may also be designed in the form of a tube which may be slidably mounted in the stationary container.

An embodiment of such a device is shown in Figs. 3, l and 5. In this case the stationary container consists of a trough which is common to a plurality of rotary receptacles. The motordriven spindle 2! through which passes the viscose, carries a multiple-orifice spinner head 22 and the lower section 23 of the rotary receptacle. The upper section of the rotary receptacle contains a tube 25 provided with a flange or cover 2d. The flange 24 has extensions 26 engaging lugs 21 of the lower section 23 of the rotary receptacle, thus securing both sections 23 and 24 of the rotary receptacle. 28 denotes the holes for the passage of the coagulating solution contained in the rotary receptacle 23. On the flange 24 is mounted a disc 29 which is provided with radially extending grooves 30. The coagulating solution used passes outwardly through the perforations 28 and the grooves 30. The disc 29 may be so designed that it may be replaced by other discs. The interchangeable discs employed have different diameters. with gr0oves'30 differing in number and in crossthe head 22.

Furthermore, they are provided section. The disc 29, therefore, constitutes a control member for regulating the quantity of coagulating solution passing through the rotary receptacle. The control effect of the disc varies with varying diameter, cross-section and number of the grooves 3i! and also with varying weight of the discs, since these factors are essential to the resistance which the disc 29 opposes to the flow of the liquid from the receptacle 23. By correspondingly adapting the weight of the disc 29, which in this case may be slidably arranged on the tube 25, the grooves 30 may be dispensed with.

The upper end of the tube 25 engages in a rubber sleeve 3! arranged on a branch 32 of the trough 33 common to a plurality of spinning devices. The tube 25 is provided with grooves 34 for the reception of needles 35 secured to a ring 36. The numeral 3? designates a rubber sleeve. These parts serve to rotate a tubular thread passage 38 together with the tube 25. The tube 38 may be removed from the tube 25 in the upward direction. A non-revolving tube 39 for the passage of the thread is secured to the sleeve 32 of the trough 33 by means of partition walls 40. For instance, three such partition walls may be sufiicient. While these walls allow the liquid to flow froinstationary container 33 into tube 25, they prevent the rotation of the liquid in tube 25 from being transferred into the stationary container. The tube 39 may be removed from the sleeve 32 in the upward direction (of. Fig. 5). in the tube 39 the tube 38 which rotates with the rotary receptacle is held in position by means of a spherical guide 36. The spherical guide 46 v has the purpose to permit the revolving tube 38 to follow oscillations of the rotary receptacle.

Fig. 4 shows the rotary receptacle with the cover removed. The cover 24 is held by a holder GI, 32 in the position shown. A conduit 43 in which is arranged a shutting-off device d4 serves to fill up the lower section 23 of the rotary receptacle during the starting of the spinning when the head 22 is at rest. From Fig. 4 it will be seen that after the lower section of the rotary receptacle has been uncovered and the tube 25 raised to the position shown, the supply of the coagulating liquid from the collecting tank 33 to the rotary receptacle is automatically interrupted. In this manner the operation of the spinning device is considerably simplified.

The device may also be easily cleaned, since the parts serving to guide the thread may be easily taken apart as shown in Fig. 5.

The tube 25 may as'shown in Fig. 3 be so designed as to be provided at its lower end with a flared portion extending beyond the surface of In designing the device in such a manner the artificial silk threads are continuously "surrounded up to the head by fresh coagulating solution, since the latter can only flow from the tube 25 into the receptacle 23 after passing by the -holes of the head.

Furthermore, the interior of the tube 25 has according to the invention a conical shape,vthe

inner diameter (1)) of the upper part of the tube the speed of rotation of the liquid column is accelerated, whereby an eventual slip of the liquid column with respect to the tube wall and particularly with respect to the head is compensated for. .At higher speeds of rotation a liquid pressure directed in the upward direction may be brought about by the inner conical'shape of the conduit '25. I-Iowever,-'this liquid-pressure is overcome by the statical pressure of the liquid column above the tube-and by the tension I brought about dynamically at the outlet openings arranged in the disc -29. The Automatic adaptation of the speedof rotation of the setting bath in the lower portion of the tube to the speed of rotation of the tube and, therefore,to the speed of rotation of the spinner head 22 improves the product, since the mechanical strain of the threads which issue from the nozzle and which are in this state still sensitive, is further diminished.

In the embodiment according 'to Figs. 6 to 8 the receptacle for the reception of the revolving portion of the coagulating liquid is at rest, therotation of the liquidbeing caused by revolving members.

On the spinner head 5! are arranged ribs '52 supported by means of rings 53 and 54 (Fig. -8). The ring 54 is provided with lugs 63 which engage in recesses of the head 6'4. Consequently, when the head rotates the ring 54, the ribs 52 and the ring 53 are also rotated.

All other parts of the device are at rest. The -bowl-shaped lower section 55 of the receptacle -for the rotating portion ofthe coagulating liquid is closed by the upper section consisting of a cover-51, a tube'59 connected with the station- 'ary tank 58, and a plate which forms a control devicefor adjusting-the amount of out-flowing liquid in away similar to plate 29 of the above-described device of Fig. 3. A tubular thread passage 55 having at the lower end there- 'of a flange 6i is connected to the container 58 for the stationary portion of the liquid column by means of walls .10 which are arranged similarly to and serve the same purpose as walls 40 in the embodiment of Fig. 3.

The spinning device is opened by loosening the cover 57 and raising container 58. Thereby the ribs 52-are drawn in the upward direction by the flange El which comes into contact with-the ring 53, the cover plate 51 being taken along by the lugs 62 arranged on tube 59.

On the spinner head 51 are provided wings 6B which cause the liquid contents of the receptacle 56 to rotate. In the open state of the device as shown in Fig. 7, the rotation of wings 66 causes emptying the receptacle, since the revolving liquid rises along the conical wall of the receptacle and is ejeotedtherefrom.

This form of invention has the advantage that the revolving masses are reduced to a minimum. Consequently, the demand for-energy is smaller and the danger of un'balancesis lessened. With such a device the same advantages may be obtained as in the case of the above-described embodiments.

I claim as my invention:

1. A device for spinning artificial threads from viscous material into a column of coagulating liquid having a rotating lower portion and anonrotating upper portion, comprising a rotary spinning head arranged at the bottom of said column for ejecting said viscous material into said rotating portion of said column, means for supplying said viscous material to said head, and means for imparting a rotation to said head and said lower portion of said liquid column, in combination with a receptacle surrounding said head and designed for holding said lower portion of said liquid column, a container disposed above said receptacle and designed for holding said upper portion ofsaid liquid column,'a duct disposed axially between said receptacle andsaid container so asto form a passage for said thread, said receptacle being subdivided transversely to the spinning direction into a lower and an upper section, said two sections being detachable from each other so as to be removable relative to each other in said spinning direction, said lower section being cup-shaped and designed for holding part of said liquid covering said head and for rendering said head accessible for starting the spinning when said two sections are detached from .each other.

2. A device for spinning artificial threads from viscous material into a column of coagulating liquid having a rotating lower portion and a disposed axially between said receptacle and said container so as to form'a passage for-said thread, said receptacle being subdivided transversely to the spinning direction into two sections detachable from each other, the upper of said two sectionsbeing connected with said con- 4 tainer and said duct to a unit separable as a whole from the lower of said two sections, said lower section being designed and arranged for 'holdingpart of said liquid covering said head when said unit and said lower section are separated from each other.

3. A device for spinning artificial threads from viscous material into a column of coagulating liquid having a rotating lower portion and a non-rotating upper portion, comprising a rotary hollow spindle for supplying the viscous material, means for-driving said spindle, a multiple-- orifice spinning head mounted at the discharge end of said spindle so as to rotate therewith, a rotary receptacle for holding said rotary portion of said liquid column,'a stationary container disposed axially above said rotary receptacle for holding said stationary portion of said liquid column, said rotary receptacle having a lower and an upper section detachable from each other, said lower section being connected with said spindle in order to rotate therewith and being cup-shaped so as to holdpart of said liquid covering said spinning head when said two sections are detached from eachother, and a communication duct disposed between said upper section and said stationary container and forming a passage for the thread, said-upper section, said duct, and said stationary container being removable from said-lower section in the direction of the thread.

4. A device for spinning artificial threads from viscous material into a column of coagulating liquid having a rotating lower portion and anonrotating upper portion, comprising a rotary hollow spindle for supplying the viscous 'material, means for driving said spindle, a multiple-orifice spinning head mounted at the discharge end of said spindle so as to rotate therewith, a rotary receptacle for holdingsaid rotary portion of said liquid column, said rotary receptacle having a lower and an upper section detachable from each other, said lower section being connected with said spindle in order to rotate therewith and beingcupshaped so as to hold part of said.

liquid covering said spinning head when said two sections are detached from each other, a stationary container disposed axially above said rotary receptacle for holding said stationary portion of said liquid column, said stationary container being connected with said upper sec tion so as to form an axial passage for the thread, and being disposed to be removable together with said upper section from said lower section by raising, a stationary storage tank for coagulating liquid, and a flexible communication duct between said storage tank and said container, said tank being arranged in the height of said container when said latter is in operating positicn so that said flexible duct effects a supply of liquid to said container when said latter is in operating position and interrupts the supply when said container is in its raised position.

5. A device for spinning artificial threads from viscous material into a column of coagulating liquid having a rotating lower portion and a non-rotating upper portion, comprising a rotary hollow spindle for supplying the viscous material, means for driving said spindle, a multiple-orifice spinning head mounted at the discharge end of said spindle so as to rotate therewith, a rotary receptacle for holding said rotary portion of said liquid column, a stationary container disposed aX- ially above said rotary receptacle for holding said stationary portion of said liquid column, said rotary receptacle having a lower and an upper section detachable from each other, said lower section being connected with said spindle in order to rotate therewith and being cup-shaped so as to hold part of said liquid covering said spinning head when said two sections are detached from each other, said upper section having a tubular portion mounted slidably in the bottom of said stationary container and protruding when in spinning position from the bottom of said container towards said lower section by a length greater than the distance of its upper opening from below the liquid level of said stationary container.

6. A device for spinning artificial threads from viscous material into a column of coagulating liquid having a rotating lower portion and a nonrotating upper portion, comprising a rotary hollow spindle for supplying the viscous material, means for driving said spindle, a multiple-orifice spinning head mounted at the discharge end of said spindle so as to rotate therewith, a rotary receptacle for holding said rotary portion of said liquid column, a stationary container disposed axially above said rotary receptacle for holding said stationary portion of said liquid column, said rotary receptacle having a lower and an upper section detachable from each other, said lower section being connected with said spindle in order to rotate therewith and being cup-shaped so as to hold part of said liquid covering said spinning head when said two sections are detached from each other, said upper section having a tubular portion extending upwardly into said stationary container and downwardly beyond the surface of said spinning head.

7. A device for spinning artificial threads from viscous material into a column of coagulating liquid having a rotating lower portion and a nonrotating upper portion, comprising a rotary hollow spindle for supplying the viscous material, means for driving said spindle, a multiple-orifice spinning head mounted at the discharge end of said spindle so as to rotate therewith, a rotary receptacle for holding said rotary portion of said liquid column, said rotary receptacle having a lower and an upper section detachable from each other, said lower section being connected with said spindle in order to rotate therewith and being cup-shaped so as to hold part of said liquid covering said spinning head when said two sections are detached from each other, a stationary container disposed axially above said rotary receptacle for holding said stationary portion of said liquid column, said stationary container being connected with said upper section, and a stationary conduit forming a passage for the thread, said conduit being arranged in said stationary container so as to be removable in the upward direction.

8. A device for spinning artificial threads from viscous material into a column of coagulating liquid having a rotating lower portion and a nonrotating upper portion, comprising a rotary hollow spindle for supplying the viscous material, means for driving said spindle, a multiple-orifice spinning head mounted at the discharge end of said spindle so as to rotate therewith, a rotary receptacle for holding said rotary portion of said liquid column, said rotary receptacle having a lower and an upper section detachable from each other, said lower section being connected with said spindle in order to rotate therewith and being cup-shaped so as to hold part of said liquid covering said spinning head when said two sections are detached from each other, a stationary container disposed axially above said rotary receptacle for holding said stationary portion of said liquid column, said stationary container being connected with said upper section, a stationary conduit arranged axially in said stationary container, a tubular duct forming a passage for the thread and being arranged in said upper section so as to rotate therewith, said duct having a smaller cross section than said stationary conduit and extending into said conduit, and means near the upper end of said duct for securing the mutual position of said conduit and said duct while allowing oscillatory movements of said duct.

9. A device for spinning artificial threads from viscous material into a column of coagulating liquid having a rotating lower portion and a nonrotating upper portion, comprising a rotary spinning head for ejecting said viscous material, means for supplying said material to said head, and means for imparting a rotation to said head and said lower portion of said liquid column, in combination with a receptacle surrounding said head and designed for holding said lower portion of said liquid column, said receptacle having openings for discharging liquid and adjustable means for controlling said openings, a container disposed above said receptacle and designed for holding said upper portion of said liquid column, means for supplying liquid to said container, a duct disposed axially between said receptacle and said container so as to form a passage for said thread.

10. A device for spinning artificial threads from viscous material into a column of coagulating liquid having a rotating lower portion and a nonrotating upper portion, comprising a rotary hollow spindle for supplying the viscous material, means for driving said spindle, a multiple-orifice spinning head mounted at the discharge end of said spindle so as to rotate therewith, a rotary receptacle for holding said rotary portion of said liquid column, said rotary container having openings for discharging coagulating liquid, a stationary containerdisposed axially above said rotary receptacle for holding said stationary portion of said liquid column, a communication duct con.- necting saidstationary container'and said rotary receptacle, means-for-supplying coagulating liquid to said stationary container, said means being designedfor maintaining a constant liquid level in said stationary container, and a device for controlling said openings, of said receptaclein order to adjust the discharge of coagulating liquid.

11. A device for spinning artificial threads from viscous material into a column of coagulating liquidihaving a rotating lower portion and a nonrotating upper portion, comprising a rotary hollow. spindle for supplying the viscous material, meansfor driving said spindle, a multiple-orifice .spinning head mounted at the discharge and of said: spindle so as to rotate therewith, a rotary receptacle for holding said rotary portion of said liquid column, a stationary container disposed axially above said rotary receptacle for holding said stationary portion of said liquid. column, said rotary receptacle having a lower and an upper section detachable from each other, said lower sectionbeing connected with said'spindle in order to rotate therewith and being cup-shaped so as tohold part of said liquid covering said spinning head when said two sections are detached from each' other, said upper section consisting of a cover closing said lower section and a tubular portionon top of said cover, said tubular portion having a. smaller cross section than said lower section and said. cover, openings in said cover for the discharge of coagulating liquid, a disk arranged on saidcover so as to surround said tubular portion, said: disk. having grooves for the passage of liquid discharged through said openings, and means for supplying coagulating liquid to said stationary container.

12: Adevice for. spinning artificial threads from viscous material into a column of coagulating liquid havinga rotating lower portion and a nonrotating upper portion, comprising a rotary hollow spindle for supplying the viscous material, means for driving said spindle, a multiple-orifice spinning head mounted at the discharge end of said spindle so as to rotate therewith, a rotary receptacle for holding said rotary portion of said liquid column, said rotary receptacle having openings for discharging coagulating liquid, a stationary container dispose-d axially above said rotary receptacle for holding said stationary portion of said liquid column, said rotary receptacle having a lower and an upper section detachable from each other, said lower section being connected with said spindle in order to rotate therewith and being cup-shaped so as to hold part of said liquid covering said spinning head when said two sections are detached from each other, said upper section having a conical tube connected with said stationary container, said tube extending when in operation to the neighborhood of said spinning head and having its smaller diameter near said spinning head, and means for supplying coagulating liquid to said stationary container.

13. A device for spinning artificial threads from viscous material into a column of coagulating liquid having a rotating lower portion and a nonrotating upper portion, comprising a rotary hollow spindle for supplying the viscous material, means for driving said spindle, a multiple-orifice spinning head mounted at the discharge end of said spindle so as to rotate therewith, a rotary receptacle for holding said rotary portion of said liquid column, said rotary receptacle having 'openinga for discharging coagulating liquid, a

stationary container disposed axially above said rotary-receptacle for holding said stationary por tion of: said liquid column, said rotary receptacle having a lower and anupper section detachable from each other, said lower section being connected with said spindle in order to rotate therewithandfbeingcup-shaped so as to hold part of saidiliquid covering said spinning head when said twosectionsare detached from each other, said upper section having a conical tube connected at itsupper, wider end with said-stationary container: and being. fiaredatits lower, narrower end near" saidspinning head; and means for supplying coagulating liquid'tosaid stationary container.

14'. A device for spinning artificial threads from viscous material into a column of coagulating liquidhaving a-rot'ating lower portion and-a nonrotating upper portion, comprising a rotary spinning head for ejecting said viscous material, means for supplying said material tosaid head and means for. imparting arotation to said head, in combination witha stationary receptacle surrounding said head'and designed for holding said 7 lower portion of said liquid column, means in said receptacle for imparting a rotation to the liquidin. said receptacle in the direction andat .the speed; of. the rotation of said-spinning head,

a stationary container arranged axiallyabove saidreceptacle, said container being designed for holdingxsaid upper portion of said liquid column and communicating with said receptacle.

15; A device for spinning artificial threads from viscous material into-a column of coagulating liquidhaving a rotating lower portion and a.- non-rotating upper portion, comprising a rotary spinning head for ejecting said viscous material; means for supplying said material to said head? and-meansfor imparting a rotation to said stationary container arranged axially above and connected with said tubular extension, an agitator disposed in said extension, means for coupling said agitator with said spinning head in order to impart a rotation to the liquid in said receptacle.

16. A device for spinning artificial threads from viscous material into a column of coagulating liquid having a rotating lower portion and a non-rotating upper portion, comprising a rotary spinning head for ejecting said viscous material, means for supplying said material to said head and means for imparting a rotation to said head, in combination with a stationary receptacle surrounding said spinning head and designed for holding said lower portion of said liquid column, wings connected with said spinning head for imparting a rotation to the liquid in said receptacle, a stationary container arranged axially above said receptacle, said container being designed for holding said upper portion of said liquid column and communicating with said receptacle, and thread guiding means arranged in the rotation axis of said spinning head and designed to allow the course of the thread to remain in said rotation axis.

17. A device for spinning artificial threads from viscous material into a column of coagulating liquid having a rotating lower portion and a non-rotating upper portion, comprising a rotary spinning head for ejecting said viscous material, means for supplying said material to said head and means for imparting a rotation to said head, in combination with a stationary receptacle surrounding said spinning head and designed for holding said lower portion of said liquid column, agitating means connected with said spinning head for rotating the liquid in said receptacle, a stationary container arranged axially above said receptacle, said container being designed for holding said upper portion of said liquid column and communicating with said receptacle, a duct forming a passage for the thread and arranged in the rotation axis of said spinning head so as to allow the course of the thread to remain in said rotation axis, and means for impeding a transfer of the rotary movement to the liquid in said second container.

18. A device for spinning artificial threads from viscous material into a column of coagulating liq uid having a rotating lower portion and a nonrotating upper portion, comprising a rotary spinning head for ejecting said viscous material, means for supplying said material to said head, and means for imparting a rotation to said head and said lower portion of said liquid column, in combination with a container for holding said upper portion of said liquid column, a receptacle arranged below said container and designed for holding said lower portion of said liquid column, said receptacle being subdivided transversely to the spinning direction into two detachable sections, the lower of said two sections being cupshaped and containing said spinning head so as to render said head accessible and to hold part of said liquid covering said head for starting the spinning when said two sections are detached from each other, said upper section of said receptacle and said container being axially connected with each other so as to form a unit,

said unit being arranged movably so as to be displaceable from said lower section in the direction of the thread, a storage tank for coagulating liquid, and communicating means for supplying liquid from said storage tank to said container, said means being designed to automatically shut ofi. the liquid supply when said two sections are in detached position.

19. A device for spinning artificial threads from viscous material into a column of coagulating liquid having a rotating lower portion and a non-rotating upper portion, comprising a rotary spinning head for ejecting said viscous material, means for supplying said material to said head,

and means for imparting a rotation to said head.

and said lower portion of said liquid column, in combination with a container for holding said upper portion of said liquid column, a receptacle arranged below said container and designed for holding said lower portion of said liquid column, said receptacle being subdivided transversely to the spinning direction into two detachable sections, the lower of said two sections being cupshaped and containing said spinning head so as to render said head accessible and to hold part of said liquid covering said head for starting the spinning when said two sections are detached from each other, said upper section of said receptacle being connected with said container so as to communicate therewith, a tubular duct arranged concentrically in the upper end of said upper section so as-to form a transitional passage for the thread between said upper section and said container, said duct having a smaller cross section than said upper end of said upper section,

and baffling means disposed in the interstice between said duct and said upper section for impeding a rotation of the liquid flowing through said interstice.

KARL BERNDT. 

